Product Description:

The FECG02.1-22K0-3P400-A-BN-MODB-01V01 is produced by Bosch Rexroth Indramat for the FEC Frequency Converters series. This drive unit converts fixed three-phase mains power into a variable-frequency output, allowing induction motors in automated conveyors, pumps, and material-handling stations to start, accelerate, and stop under electronic control. It communicates with higher-level PLCs through a Modbus bus interface so setpoints and status can be exchanged over the plant network.

Rated output power reaches 22 kW, and the inverter supplies a continuous output current of 44 A for stable operation at full load. The unit accepts a three-phase supply at 50/60 Hz and applies V/f control so flux remains constant across the speed range. A dedicated PID regulator trims the frequency command to maintain the required process variable. Internal space-vector modulation drives insulated-gate transistors at carrier frequencies up to 15 kHz, which helps reduce audible noise. With this topology, the output frequency can be set anywhere from zero to 599 Hz, enabling motors to run above synchronous speed when the application requires it. An analog input tolerance of 0.05% preserves accuracy when the reference is supplied as a voltage or current signal.

The converter also supports precise speed adjustment. The digital frequency resolution is 0.01 Hz, while frequency-setting repeatability remains within 0.01%, giving tight speed regulation for winding or mixing stages. At start-up, it can deliver 150% (5 Hz) torque, allowing heavily loaded machines to overcome static friction without auxiliary boosters. Once in motion, the speed can be commanded anywhere within a 1:100 control span, so one motor can cover slow-crawl positioning through high-rate throughput. An optional PROFIBUS module extends fieldbus compatibility, and the 3 A relay output sends ready-to-run feedback to upstream safety circuits without an external contactor.